1.
In PL/SQL, the PURGE statement _______________.
2.
What is the output of the following expression in PL/SQL:
(6-2) - (8-3)
3.
What does REF specify in the following PL/SQL query:
ALTER TABLE employee ADD(emp_bldg REF building);
4.
Which of the following is a restriction to the cursor expressions in PL/SQL?
5.
Which of the following queries is used to create an object in PL/SQL?
6.
In PL/SQL, which of the following queries is used to initialize a nested table of numbers?
7.
In PL/SQL, which of the following commands is used to describe a complex picture of object tables?
8.
What is the output of the following PL/SQL code:
create or replace trigger exampletrigger
before insert on book
for each row
begin
    : new.bname: = upper(: new.bname)
end;
9.
In PL/SQL, which of the following methods is used to remove an item of the collection from a specified position?
10.
In PL/SQL, when do statements run in the resumable mode?